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Common Interfaces to Heterogeneous Resources

Common Interfaces to Heterogeneous Resources. glideinWMS. Version 2.x supports grid submission only Version 3.x introduces expanded support for other resources Standard grid submission support unchanged Support possible for Condor-C submissions

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Common Interfaces to Heterogeneous Resources

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  1. Common Interfaces to Heterogeneous Resources

  2. glideinWMS • Version 2.x supports grid submission only • Version 3.x introduces expanded support for other resources • Standard grid submission support unchanged • Support possible for Condor-C submissions • Support Clouds that provide EC2 Query API interface • OpenStack, Eucalyptus, Nimbus, EC2, OpenNebula, etc. • Excluded: Microsoft Azure • Note: Cloud implementations differ significantly • Example: EC2 user-data is allowed to be 64KB, Nimbus by default is limited to 4KB • EC2 provides meta-data (including user-data) over http, OpenNebula uses a proprietary method

  3. glideinWMS - Cloud • Requires an image that has been contextualized to work with glideinWMS • https://github.com/holzman/gwms-cloud-vms • Provides bootstrap service that acts upon the user-data • Provides templates to automate VM image generation using BoxGrinder • glideinWMS controls the user-data • Bootstrap service must be able to access user-data • Bootstrap service will setup and launch the pilot on the VM • Bootstrap service contains several safeguards to prevent “zombie” VMs • CERN-VM poses more problems than solutions

  4. CMS HLT Cluster • ~13,000 cores soon to be available • Installing OpenStack on the cluster • glideinWMS v3 to manage CMS workflows • Current status: • glideinWMS set up, final configuration to be determined • Factory can request VMs • OpenStack issues preventing complete workflow • Image issues • Configuration issues

  5. glideinWMS v3 • FNAL to run glideinWMS v3 in production to validate grid submission • Can aggregate resources from both the grid and the cloud from same factory • Have performed tests where user jobs have been submitted to and run on OSG resources, XSEDE resources, and Amazon EC2 resources. • Same set of jobs, different resources running simultaneously

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